Parallel close-packed plane interfaces between MnO, or Mn3O4, and Ag or Cu, were studied by means of high-resolution transmission electron microscopy and atomistic calculations. The object was to determine what network of misfit dislocations existed at the interfaces. Because of the projective nature of high-resolution transmission electron microscopy, an atomistic model which incorporated the displacements that were associated with possible misfit-dislocation networks was of appreciable value. It was found that, in the case of Ag/Mn3O4, there was an array of dislocations with a line direction of [1¯10] and alternating Burgers vectors of 1/6[11¯2] and 1/3[11¯2]. In the case of Cu/MnO, there was a trigonal network of edge dislocations with a Burgers vector of 1/6<112> type and a <110> line direction. In the case of Cu/Mn3O4, the Burgers vectors were still of 1/6<112> type but, due to a slight change in line direction with respect to <110>, there was some screw character.

B.J.Kooi, H.B.Groen, J.T.M.De Hosson: Acta Materialia, 1998, 46[1], 111-26